# US 2021/0340772 A1 · Magnesium-oxide wall tiles for modular wall systems > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0340772 A1 - Document ID: US20210340772A1 - Status: Published application - Kind: A1 - Application number: 17/286,213 - Filed: 2020-01-30 - Published: 2021-11-04 - Earliest claimed: 2019-01-30 - Assignees: Dirtt Environmental Solutions Ltd. - Applicants: Dirtt Environmental Solutions Ltd. - Inventors: Geoff William GOSLING; Hans Gunther WISSNER; Trevor Samuel DIDLUCK - Web page: https://patentgrep.com/patent/US20210340772A1 ## CPC - B32B 3/08: characterised by added members at particular parts {(layer formed of separate pieces of material which are juxtaposed side-by-side B32B3/14, B32B3/18)} - E04F 13/083: {Hooking means on the back side of the covering elements} - B32B 3/02: characterised by features of form at particular places, e.g. in edge regions {(non-uniform thickness B32B3/263)} - B32B 3/04: characterised by {at least one} layer folded at the edge, e.g. over another layer {; characterised by at least one layer enveloping or enclosing a material} - B32B 5/16: characterised by features of a layer formed of particles, e.g. chips, powder {or granules (layer formed of natural mineral particles B32B19/00; layer being formed of wood fibres, chips or particles B32B21/02)} - B32B 7/12: using interposed adhesives or interposed materials with bonding properties - B32B 9/005: {comprising one layer of ceramic material, e.g. porcelain, ceramic tile (layered products with at least two ceramic layers composed mainly of ceramic B32B18/00)} - B32B 9/06: of paper or cardboard - B32B 15/08: of synthetic resin - B32B 15/16: next to a particulate layer - B32B 21/08: of synthetic resin - B32B 21/12: next to a particulate layer - B32B 21/14: comprising wood board or veneer - B32B 27/10: of paper or cardboard - B32B 29/04: next to a particulate layer - E04C 2/28: combinations of materials fully covered by groups E04C2/04 and E04C2/08 - E04C 2/46: {specially adapted for making walls (E04C2/52, E04C2/54 take precedence; structure of slab-shaped elements E04B1/02; walls of elements of relatively thin form E04B2/72)} - E04F 13/0866: {composed of several layers, e.g. sandwich panels or layered panels (layered products as such in general B32B; producing decorative panels or veneers B44C5/04; E04F13/0864, E04F13/0875 take precedence)} - B32B 2255/10: on synthetic resin layer or on natural or synthetic rubber layer - B32B 2260/026: Wood layer - B32B 2260/028: Paper layer - B32B 2260/046: Synthetic resin - B32B 2264/102: Oxide or hydroxide - B32B 2307/00: Properties of the layers or laminate - B32B 2307/3065: Flame resistant or retardant, fire resistant or retardant - B32B 2307/732: Dimensional properties - B32B 2307/738: Thermoformability - B32B 2419/04: Tiles for floors or walls - B32B 2607/00: Walls, panels - E04C 2/52: with special adaptations for auxiliary purposes, e.g. serving for locating conduits (E04C2/54 takes precedence; block-shaped elements therefor E04C1/39; floor structures incorporating ducts E04B5/48) - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - E04F: FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS (windows, doors E06B) - E04C: STRUCTURAL ELEMENTS; BUILDING MATERIALS (for bridges E01D; specially designed for insulation or other protection E04B; elements used as building aids E04G; for mining E21; for tunnels E21D; structural elements with broader range of application than for building engineering F16, particularly F16S) ## Abstract A magnesium-oxide wall tile for use in a modular wall system includes a plurality of layers. The plurality of layers includes an inner core comprising magnesium-oxide and having a length and a height and a front face and a back face. plurality of layers also includes a thermofoil layer disposed over at least one face of the inner core. ## Claims ### Claim 1 A magnesium-oxide wall tile for use in a prefabricated wall system, comprising: a plurality of layers, comprising: an inner core comprising magnesium-oxide and having a length and a height and a front face and a back face; an intermediate layer disposed on the inner core; and a thermofoil layer disposed over at least one face of the inner core. ### Claim 2 (depends on 1) The magnesium-oxide wall tile of claim 1, wherein the length and the height are greater than or equal to 40 inches. ### Claim 3 (depends on 1) The magnesium-oxide wall tile of claim 1, wherein the intermediate layer is disposed between the inner core and the thermofoil layer. ### Claim 4 (depends on 1) The magnesium-oxide wall tile of claim 1, wherein the intermediate layer is disposed on the back face of the magnesium-oxide wall tile. ### Claim 5 (depends on 4) The magnesium-oxide wall tile of claim 4, wherein the thermofoil layer is at least partially disposed over the back face of the magnesium-oxide wall tile. ### Claim 6 (depends on 1) The magnesium-oxide wall tile of claim 1, wherein the intermediate layer comprises a resin impregnated paper product. ### Claim 7 (depends on 1) The magnesium-oxide wall tile of claim 1, wherein the thermofoil layer is disposed over the front face and at least partially over four edges of the inner core. ### Claim 8 (depends on 1) The magnesium-oxide wall tile of claim 1, further comprising at least one attachment protrusion secured to the back face of the magnesium-oxide wall tile for attaching the magnesium-oxide wall tile to a connection component of a prefabricated wall system. ### Claim 9 (depends on 1) The magnesium-oxide wall tile of claim 1, further comprising a paint layer disposed over the thermofoil layer. ### Claim 10 A prefabricated wall system, comprising: a magnesium-oxide wall tile comprising: an inner core comprising magnesium-oxide; a thermofoil layer disposed over at least one side of the inner core; and an attachment protrusion affixed to a back face of the magnesium-oxide wall tile; a vertical structural component; a horizontal structural component affixed to the vertical structural component; and a connection component configured to engage with the attachment protrusion of the magnesium-oxide wall tile, wherein: the connection component is positioned on the horizontal structural component for removably securing the magnesium-oxide wall tile to the horizontal structural component. ### Claim 11 (depends on 10) The prefabricated wall system of claim 10, wherein: the connection component includes a cavity sized and shaped to receive at least a portion of the attachment protrusion of the magnesium-oxide wall tile; and the attachment protrusion is configured to insert into the cavity to removably hang the magnesium-oxide wall tile on the horizontal structural component. ### Claim 12 (depends on 10) The prefabricated wall system of claim 10, wherein: the attachment protrusion of the magnesium-oxide wall tile includes a channel with an inward protrusion protruding inward toward an interior of the channel; and the connection component includes an engagement protrusion configured to engage with the inward protrusion of the attachment protrusion and at least partially reside within the channel of the attachment protrusion to removably secure the magnesium-oxide wall tile to the horizontal structural component. ### Claim 13 (depends on 10) The prefabricated wall system of claim 10, further comprising: a plurality of magnesium-oxide wall tiles; wherein the connection component is configured to engage with the attachment protrusions of each of the plurality of magnesium-oxide wall tiles. ### Claim 14 (depends on 10) The prefabricated wall system of claim 10, further comprising: a plurality of horizontal structural components, each horizontal structural component comprising a connection component. ### Claim 15 (depends on 14) The prefabricated wall system of claim 14, wherein: the magnesium-oxide wall tile includes a plurality of attachment protrusions; each connection component of the plurality of horizontal structural components is configured to engage with different attachment protrusions of the plurality of attachment protrusions of the magnesium-oxide wall tile. ### Claim 16 A method of forming a prefabricated magnesium-oxide wall tile, comprising: obtaining an inner core comprising a magnesium-oxide panel; cutting the magnesium-oxide panel to a desired length and height; disposing an intermediate layer comprising a smooth resin-impregnated paper on the inner core; and thermoforming a thermofoil layer over at least one side of the inner core, wherein the thermofoil layer is thermoformed at least partially over the intermediate layer. ### Claim 17 (depends on 16) The method of claim 16, wherein the intermediate layer is disposed on a front face of the inner core. ### Claim 18 (depends on 16) The method of claim 16, wherein the thermofoil layer is thermoformed over at least five sides of the inner core. ### Claim 19 (depends on 16) The method of claim 16, further comprising attaching one or more attachment protrusions to a back face of the inner core. ### Claim 20 (depends on 16) The method of claim 16, further comprising applying a paint layer to the thermofoil layer.